body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #e8f5e9;
    color: #2e7d32;
}

header {
    background-color: #4caf50;
    color: white;
    padding: 20px;
    text-align: center;
}

nav ul {
    list-style-type: none;
    padding: 0;
    background-color: #81c784;
    overflow: hidden;
    margin: 0;
}

nav ul li {
    float: left;
}

nav ul li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

nav ul li a:hover {
    background-color: #66bb6a;
}

main {
    padding: 20px;
}

section {
    margin-bottom: 20px;
}

footer {
    background-color: #4caf50;
    color: white;
    text-align: center;
    padding: 10px;
    position: fixed;
    bottom: 0;
    width: 100%;
}

img {
    max-width: 100%;
    height: auto;
}

@media (max-width: 600px) {
    nav ul li {
        float: none;
        width: 100%;
    }
}